Colts owner Jim Irsay set off every skyrocket that he could in trying to build up Wednesday's story, hours before it broke. Eyes were rolled, and scoffs were heard.Then it happened. The doubters were floored.In-season trades of high magnitude are rare, but Irsay dropped a bombshell in trading Indianapolis' 2014 first-round draft pick for Browns running back, and 2012 first-rounder, Trent Richardson.Richardson leaves the Browns after 18 games to fill the void left by the injured Vick Ballard, who tore his ACL in practice a week ago.Here's a look at some significant in-season trades over the last thirty years, with some being more fruitful than others.

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